To assess the quality of each contender, I analyzed how it handles word processing, spreadsheet editing, and presentation management. I took into account the app's interface -- on both the smartphone and tablet form -- as well as the breadth and quality of the features it offers. I also tested several stand-alone apps to find the best Android tablet tool for PDF manipulation, as most office suites don't natively provide that function.

(Note: Google acquired Quickoffice last summer but has thus far continued to offer the company's products as stand-alone non-Google apps; a Google spokesperson was not able to confirm if or when that approach might change.)